Magazine stove with gas combustion



Nov. 11,11947. A P. wlNGERT 2,430,594

MAGAZINE STOVE`WITH GAS COMBUSTION CHAMBER Filed July .16, 1942 2swans-sheet "1 V /0 @I 2 I Nov. 11, 1947. 'P. wlNGERT MAGAZINE STOV WITHGAS COMBUSTIN CHAMBER neem-sheet no n 9 0 f m -E o) oo I OD 3% PatentedNov. ll, 1947 MAGAZINE STOVE WITH GAS CGMBUSTION CHAIYLBER Paul Wingert,Montpelier, Ohio Application July 16, 1942, Serial No. 451,097

1 Claim. (Cl. 126-73) 'This invention relates to improvements in stoves,furnaces and the like, and is a continuation-in-part of my co-pendingapplication, Serial No. 377,511, iiled February 5, 1941, now Patent No.2,345,519, for Draft tube for stoves and furnaces.

The main objects of my invention are to provide an improved internalconstruction forstoves and furnaces; to provide a new and novel linerfor stoves and furnaces having a sealed magazine; to provide acorrugated liner for stoves and furnaces of the sealed 'magazine type;'to provide a pair of corrugated liners for a, sealed magazine of astove or furnace, which liners are arranged to abut against the innerfront and reai` walls of the stove shell respectively so that thegrooves on the side of the corrugated members facing the said walls ofthe stove shell form closed vertically extending passageways; the upper'end of the corrugated members being capped while the lower ends of theso-formed passageway-s are arranged to communicate with the ash pitchamber; to provide in such arrangement -of parts periorations, .slotsor the like in the corrugated members adjacent their upper ends whereby.any volatile Igases accumulating Vin the upper end-oi the magazine maybe drawn into the aforesaid v.passageways through said perforations andbe discharged into the ash pit chamber and below the grate line; toprovide in a device of this character, an improved safety means for thesealed magazine to prevent the creation of gas pressures therein and toobviate danger of explosion; to provide a cornbustion device of thischaracter wherein .the velocity of travel of the products of combustionis relatively slow and completely under control at all times; and toprovide a new and novel stove or furnace which is relatively ,simple inconstruction and extremely efficient in operation.

A speciiic embodiment of this invention is shown in the accompanyingdrawing in which:

Figure 1 is a horizontal cross-sectional view taken on the .line I -l ofFigure 2.

Figure 2 is a vertical cross-sectional 'view on the line 2--2 of Figure1.

Figure 3 is a vertical cross-sectional view `taken on the line 3-3 ofFigure 2.

Figure 4 is a perspective view of the .fuel feed door.

Figure 5 is a sectional View taken on the 5-5 of Fig. 3.

Referring in detail to the drawings, the :stove to which this `inventionrelates is of the sealed magazine type, and the magazine herein4disclosed is deiined by a pair of cast iron or steel fcorrugated frontand back walls l and 2, and a pair of side walls 3 and :4., constructedof iire brick, the

lower ends of which are spaced away from grates li a predetermineddistance and held in such posi tion by suitable brackets 6 and l. Theupper end of the corrugated wall l is capped or sealed by any suitablemeans such as a cover plate The upper end of the corrugated wall 2 abutsagainst the lower portion wall 9 of the upper chamber H3 and is therebysealed at this end. rThe lower ends of the corrugated walls l and 2 bearagainst the grate plate Il. The grate plate l l is provided with spacedmarginal openings |2 aiigned with the lower ends of the grooves in thecorrugated members. The upper end of the corrugated walls l and 2 areprovided with perforations or slots Ill the purpose of which will behereinafter described.

The sealed magazine is enclosed in a suitable housing or shell l5preformed to any desired size and shape and constructed of any suitablematerial such as heavy steel. The stove shown is also provided with afuel feed door I6 having a han dle I1; an ash pit chamber i8 having theusual ash pit door I3 hingedly connected to the door frame 20. The ashpit `door I3 is also provided with suitable regulator means, not shown,for controlling the amount of primary draft ail1 entering the ash pit 18through the door IS as will be understood by those skilled `in the art.The upper chamber l0 communicates with the stack through suitable piping2|.

As yshown in Figs, 3 and 5 the upper chamber is separated from themagazine by the vwall portion yil. This wall portion 9 lies lon top ofthe walls 3 and 4, and is spaced above the saine 'by means of downwardlyinclined portions ill) which termi-nate at their forward ends invertically eX- tending walls y9ct which extend upwardly to the top ofthecasing and forwardly into engagement with the casing l5 `so as tocooperate with 4the door fl-G .and the sealing `ring R to seal themagazine.

The fuel feed door l5 4is also provided with `a downwardly extendingflange 22 which acts as a safety Dy-pass damper door and it is .arrangedto completely cover the opening 23 in the side wall of the upper chamberso that the feed door I6 is swung upwardly around pivot Eil to yopen thesame, the .damper door 2-2 swings forwardly and upwardly away from theopening 23 (see Fig. 3) thereby uncovering the same to permit anyvolatile gases accumulating in the upper end of the sealed chamber toescape :to the upper chamber Llil and ont the stack. 'This substantiallyremoves any danger lof .the gas-zes escaping into the room when the fuel.feed door lzis opened.

The gratos 5 are pivotally .secured to the grate frame II in the usualmanner and are operable through manual vn'iovement of the grate fbar125.

after described. The walls 3 and 4 are spaced away from the shell I5(see Figs. l and 2) and 1 thereby form the radiators 21-28 respectivelythrough which the products of combustion pass from the combustionchamber to the upper chamber IB. l

Metallic baille plates 28 and 3i! are placed diagonally one in each ofthe lower ends of the. radiators 2'I and 28 respectively, see Fig. 2.The lower edges of each of the plates 29 and 3G lbear against the grateframe i I while the upper edges thereof bear against the inner wall ofthe shell I5.

The angle at which the baille plates 2@ and 33 are set is predetermined,as the area of the opening, i. e., the opening between the bottom edgesof walls 3 and 4 and the faces of bafile plates 29 and 30 respectively,is definitely affected by the relationship of the angular position ofthe baille plates and the bottom edges of walls 3 and 4. It will beapparent that the greater the angle, the larger the opening and viceversa.

After the re has been started in the magazine, the magazine may becompletely filled with fuel since combustion takes place at the grateline and the products of combustion are drawn on" at the grate line andpass into the radiators 2? and 28. The products of combustion passingthrough the radiators 21-28 respectively co-mingle in the upper chamberI0 and thence pass out to the stack.

Any volatile `gas which accumulates above the fuel -bed will be drawninto the passageways I3, through the perforations i4 and be directeddownwardly to the ash pit and be emitted below the grate line, where itadmixes with the draft air entering the ash pit through the ash pit doorI9. The combined fresh air and volatile gases then pass upwardly throughthe grates 5, to convert the gas into a flame.

As the magazineof the stove is completely closed on top and has nodirect connection with the stack, while the feed door I6 is closed, andbecause of the draft effect of the stack in the ash pit chamber.

combustion in the radiators must pass through restricted openingsbetween the lower ends of the walls 3 and fl and the faces of bailleplates 2S and 3@ to reach the upper chamber Ill; hence providing moretime for the products of combustion to remain in the radiators andallowing ample opportunity for them to give on their heat. The purposeof providing the upper chamber iii is to afford amore uniformdistribution of the products of combustion as they pass from theradiators 2 and 28, thereby obviating cool areas in f the upper rearportions of the radiators,

It will be understood that corrugated rebrick may be substituted inplace of the cast iron or steel corrugated side walls I and 2, therebycutting down the weight of the stove as a whole. Such firebrick would,of course, be provided with perforations similar to those indicated bythe numerals lll in the cast iron or steel plates disclosed in thedrawings.

In order to prevent primary draft air or the volatile gases emitted intothe ash pit chamber I8 from passageways I3 from entering the radiators2l and 28 because of leaks around the upper edges of the baille plates29 and 3B where they bear against the inner walls of the shell I5, Ihave secured partition plates 3l and 32 in the The plates are securedtherein in any suitable manner, such as by bolts 33, and therebyrestrict the area of the ash pit chamber and effectively accomplish theresults sought. As clearly shown in Fig. 2, the plates 3| and 32 are setin the ash pit chamber I in such a manner that they substantially form acontinuation of the baille plates 29 and 3U respectively and seal oilthe area directly below the radiators 2l and 28 so that this area belcomes a dead air space.

radiators 2l and 28, the gases driven off from ,Y

brick walls 3 and 4 and the walls I and 2 and 1 through the hot coke onthe grate where they admix with the combined freshr air and volatilegases coming from the ash pit chamber I8, to convert the gases into aflame.

The result is that the rebrick walls 3 and 4 become very hot and theheat thereof cuts the coal in the magazine and causes it to movedownwardly very slowly and easily; thereby preventing the coal fromfreezing up and caking or arching. Since there is but a slight fuel bedresistance an extremely low draft is all that is necessary in a normaloperation. This results in a slow lazy flame travel through theradiators, allowing ample time for the transfer of heat to the room, andthereby giving lower than average stack temperatures.

It will also be apparent that the products of The stove as a whole isalso provided with the usual legs 3d to space it from the floor uponwhich the stove is to be set.

Although but one specific embodiment of this invention is herein shownand described, it is to be understood that some of the details set forthmay be altered or omitted without departing from the spirit of thisinvention as dened by the following claim.

I claim:

A stove of the class described wherein combustion takes place at thegrate line and the products of combustion are withdrawn at the grateline comprising a shell having a top wall, a sealed magazine locatedwithin said shell, grates located below said magazine, an ash pitchamber provided with a primary draft damper, a fuel feed door in saidshell and communicating with said sealed magazine, a chamber located inthe upper end of said shell and defined by side, top and bottom walls,and a pair of radiators each delined by a vertically extending rebricklining and the inner face of a portion of said shell, said sealedmagazine being defined by a portion of the top wall of said shell, thebottom wall of said chamber, the inner faces of said firebriclr liningforming a pair of side Walls, and front and back walls having spacedvertical corrugations parallelly disposed against the respective innerwalls of said shell the lower portions of saidside walls of saidmagazine being spaced away from said grates to provide communicationbetween said magazine and said radiators, said corrugated walls andshellforming a series of independently arranged enclosed passageways whichterminate in said ash pit chamber, each of said passageways being closedat their upper ends and Vsaid corrugated Walls having perforationstherein located adjacent the upper end thereof whereby volatile gasesaccumulating in the upper end of said magazine may be drawn through theperforations into said passageways and directed into said ash Ipitchamber, admixed with primary air in said ash pit chamber and theadmixture returned to said magazine.

PAUL WINGERT.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number Name Date 1,327,798 Wotherspoon et al. Jan.13, 1920 1,845,337 Pence Feb. 16, 1932 Number Number Germany Oct. 24,1924

